KR101320699B1 - A maintain distance device of concrete mold using one piece type bolt - Google Patents

Abstract

The present invention relates to a space keeping device of concrete formwork using an integral body bolt that is bound to the reinforcement, the body bolts, support plates, tightening nuts for maintaining the distance between the pair of formwork installed at a certain distance from each other In addition to solidarity, it is intended to maintain the gap between the formwork by tightly binding the formwork to prevent the formwork from moving in the direction of gathering and opening.
Concrete formwork space maintenance device using an integral body bolt that is bound to the reinforcement according to the present invention, the threaded portion is formed on the outer circumferential surface is interposed between the first and second formwork (1, 2) disposed at a predetermined distance from each other First and second body bolts 10 and 20, which are screw-fastened to screw rods 30 and both sides of the screw rod, respectively, are supported by a reinforcement installed on the outside of the first and second dies, and screwed to the screw rods. The first and second support plates 40 and 50 for supporting the first and second body bolts to the reinforcement installed outside the first and second dies, and the first and second body bolts are fastened to each other through the first and second support plates. First and second body bolts 60 and 70 for supporting the first and second body bolts to the first and second die side, wherein the first and second body bolts, the first and second bodies penetrating the reinforcing material First and second parts 11 and 21, respectively, formed at opposite ends of the first and second body parts and screwed to the screw rods. First and second wedge portions 13 and 23 and the first and second nut portions 12 and 22 formed in a cone shape or a spherical shape having a larger cross-sectional area than the first and second body portions, and the first and second body portions. And a first and second screw parts 14 and 24 formed on an outer circumference of a second body part and fastening the first and second tightening nuts, wherein the first and second support plates are external to the first and second dies. It is supported by the reinforcement installed in the plate-shaped hole in the center so that the first and second screw portion of the first and second body bolts penetrate through, and the first and second wedges of the tapered cross section that is supported by the wedge type Wedge grooves 41 and 51 are provided, and the first and second body bolts and the first and second support plates are wedge-type fastened by the fastening of the first and second fastening nuts, thereby spacing the first and second dies. To maintain the structure.

Description

Spacing device for concrete formwork using integral body bolts synthesized integrally with formwork {A MAINTAIN DISTANCE DEVICE OF CONCRETE MOLD USING ONE PIECE TYPE BOLT}

The present invention relates to a space maintaining device of the concrete formwork, and more specifically to the formwork by restraining the movement of the formwork in all directions while integrating the first and second body bolts and the reinforcement to maintain the space of the pair of formwork. It relates to a spacing device for concrete formwork using an integral body bolt that is bound with a reinforcing material that can maintain the spacing between.

In general, in the construction of construction and civil engineering structures, the most common method of forming various pillars, walls, etc. is a method of curing after injecting concrete into a frame that is uniformly woven to have a predetermined shape. The formwork, which forms a retaining wall, usually takes about two days to remove.

As such, the formwork that is to cast concrete between the inner and outer pair of panels should keep the gap between the inner and outer pair of panels constant until the completion of curing so as not to deviate from the design dimensions. It is a die spacer.

Therefore, the formwork gap maintaining device is basically fixed to the inside and outside, that is, the gang form and the euro form so as to prevent these panels from spreading over a predetermined interval when placing concrete, various forms have been developed and proposed so far. .

Conventional spacing device for placing concrete in connection with this technique is disclosed in Korean Utility Model Publication No. 326109, the configuration of which is fixed through the first form (for example, gangform) and the second form (for example, Euroform), It is a rod-shaped member with a circular cross section so as not to be spaced over the predetermined distance between the first formwork and the second formwork when placing it, so that the concrete placing space between the first formwork and the second formwork can be adequately secured according to the design. It has a sufficient length, and at one end, a seperty tie is formed through which a fixing slot for inserting a clamp is formed.

In addition, a threaded portion is formed at one end of the separator, and a cutting groove is formed at the end of the separator where the fixing slot is formed so that it can be cut after concrete pouring.

In addition, the bolt and the washer having a thread, the bracket, the spring and the hexagon head cone nut is made of a configuration that is integrally assembled into the vertical plate material is inserted through.

However, the formwork spacing device as described above is composed of bolts, cone nuts, Sepha Tie, fasteners are separated, the manufacturing cost is expensive according to the manufacture of each unit, and each unit must be stored in a disassembled state or stored in combination, which is cumbersome to handle. There is this.

In addition, the length adjustment of the bolt and Sepha Tie for maintaining the gap is usually made only on the side of the bolt is very inconvenient to adjust the length, there is a disadvantage that the twist and separation between the materials occurs.

In order to solve such a problem, there is a spacing device for maintaining a concrete formwork using an integrated body bolt registered in the utility model by the present applicant (Patent Document 1).

Patent document 1 is a gap holding device for maintaining a gap of the first and second formwork in which a plurality of joists and yoke material are coupled to each other on the outer surface and are established at regular intervals between each other, and the concrete is poured therebetween. Is a screw rod having a threaded portion on the outer circumferential surface, the first and second body bolts and the first and second body bolts and the first and second body bolts are respectively fastened to the yoke material of the first and second dies and screwed to both sides of the screw rods; And a washer interposed between the two dies, wherein the first and second body bolts include a cone nut portion screwed to the screw rod, a straight portion extending behind the cone nut portion, and the straight portion in the middle of the straight portion. A first support portion extended to a diameter larger than the portion, a second support portion extended to a diameter larger than the straight portion at an end portion of the straight portion, and formed at a rear side of the second support portion and rotated by a tool; And a wrench portion for adjusting the length of the gap retaining device by rotating the cone nut portion, wherein the washer is opened downward and has a vertical plate having a slot in a vertical direction through which the first and second body bolts pass. It consists of a head portion formed on the upper end of the direct plate.

According to Patent Literature 1, the body bolts are manufactured separately to facilitate the handling of materials, and there is no torsion and separation between materials during the operation for maintaining the gap between a pair of formwork, so maintenance and reuse are more active and maintenance and construction The cost can be reduced and material loss and management are very easy by handling only the bolts of the main body, but the reinforcing material (the yoke material) and the 1st and 2nd body are made by the washer sandwiched between the 1st and 2nd support part. As the bolt is supported, the thickness of the washer cannot be adjusted or the elastic deformation of the washer causes the first and second dies to shake, and thus the gap cannot be maintained.

In addition, the conventional spacing device does not have a screw rod from the outside, the operator enters the space between the first and second formwork, there is also a problem that the screw rod must be fastened to the first and second body bolts on both sides.

Registration room 20-0437568 Registration Room No. 20-0342782 Public utility room No. 20-2010-0009076 Registration Room No. 20-0149720

The present invention is to solve the problems as described above, the body bolts, support plates, fastening nuts for maintaining the distance between the pair of formwork which is installed at a certain interval between each other and tightly together with the formwork The purpose of the present invention is to provide a space keeping device for concrete formwork using an integral body bolt that is bound with a reinforcement that can maintain the gap between formwork by preventing the formwork from moving in the direction of gathering and forming each other.

Concrete formwork spacing device using an integral body bolt that is bound to the reinforcement according to the present invention, the screw rod is formed on the outer circumferential surface, each screw is fastened to both sides of the screw rod and is supported by the reinforcement installed outside the first and second formwork And first and second body bolts which are screwed to the screw rods, first and second support plates for supporting the first and second body bolts to reinforcement provided outside the first and second dies, and the first and second body bolts. And first and second fastening nuts fastened to the first and second body bolts through the first and second support plates to support the first and second body bolts, wherein the first and second body bolts are formed of the reinforcing material. First and second body parts penetrating, first and second cone nut parts respectively formed at opposite ends of the first and second body parts and screwed to the screw rods, and the first and second body parts to the first and second body parts. 1,2 formed in the shape of a cone or sphere with a larger cross-sectional area than the body A first and a second screw part formed on a support part and an outer periphery of the first and second body parts, and to which the first and second tightening nuts are fastened, and the first and second support plates are external to the first and second dies. First and second support plate bodies supported by the reinforcing material installed in the first and second support plate bodies, and the first and second screw portions of the first and second body bolts are formed to penetrate through the first and second support plate bodies. It comprises a first and second wedge groove of the tapered cross-section supported by the formula, and the first and second body bolts and the first and second support plates are wedge-type fastened by the fastening of the first and second tightening nuts Characterized in that the structure to maintain the gap between the first and second formwork.

Concrete formwork spacing device using an integral body bolt that is bound to the reinforcement according to the present invention, the screw rod is formed on the outer circumferential surface, each screw is fastened to both sides of the screw rod and is supported by the reinforcement installed outside the first and second formwork And first and second body bolts which are screwed to the screw rods, first and second support plates for supporting the first and second body bolts to reinforcement provided outside the first and second dies, and the first and second body bolts. And first and second fastening nuts fastened to the first and second body bolts through the first and second support plates to support the first and second body bolts, wherein the first and second body bolts are formed of the reinforcing material. First and second body parts penetrating, the first and second body parts are formed at opposite ends, respectively, the first and second cone nut portion screwed to the screw rod, and formed in the outer peripheral portion of the first and second body portions And first and second screw parts to which the first and second tightening nuts are fastened. The first and second support plates may be supported by a reinforcing member installed on the outside of the first and second dies and provided with a hole through which the first and second screw portions of the first and second body bolts penetrate. At least one first and second interlocking grooves are formed at the periphery of the second support plate main body and the first and second support plate main bodies, and are respectively fitted to the periphery of the reinforcing member installed outside the first and second dies. It characterized in that the structure of the first and second support plate and the reinforcing member and the first and second body bolts are bound by the fastening of the first and second tightening nut to maintain the interval between the first and second formwork.

Concrete formwork spacing device using an integral body bolt that is bound to the reinforcement according to the present invention, the screw rod is formed on the outer circumferential surface, each screw is fastened to both sides of the screw rod and is supported by the reinforcement installed outside the first and second formwork And first and second body bolts which are screwed to the screw rods, first and second support plates for supporting the first and second body bolts to reinforcement provided outside the first and second dies, and the first and second body bolts. And first and second fastening nuts fastened to the first and second body bolts through the first and second support plates to support the first and second body bolts, wherein the first and second body bolts are formed of the reinforcing material. First and second body parts penetrating, first and second cone nut parts respectively formed at opposite ends of the first and second body parts and screwed to the screw rods, and the first and second body parts to the first and second body parts. 1,2 formed in the shape of a cone or sphere with a larger cross-sectional area than the body A first and a second screw part formed on a support part and an outer periphery of the first and second body parts, and to which the first and second tightening nuts are fastened, and the first and second support plates are external to the first and second dies. First and second support plate bodies supported by the reinforcing material installed in the first and second support plate bodies, and the first and second screw portions of the first and second body bolts are formed to penetrate through the first and second support plate bodies. One or more first grooves each having a tapered cross section supported by a method, and each one or more first grooves formed in the circumference of the first and second support plate bodies and fitted into the circumferences of the reinforcement member installed outside the first and second dies. And the second interlocking groove, and the first and second body bolts and the first and second support plates are formed in a wedge manner by fastening the first and second fastening nuts to space the first and second dies. It is a structure to hold.

According to the spacing device of the concrete formwork using the integral body bolt that is bound to the reinforcement according to the present invention, in the first embodiment, the first and second body bolts are integrally synthesized through the screw rods and the first and second bodies Since the bolt and the first and second support plates are wedge-type coupled by the tightening force of the first and second tightening nuts, the first and second dies are not moved in both the direction in which the first and second dies are gathered and the opening direction are maintained so that the gap between the first and second support plates is maintained. It can be used to improve the reliability and reliability of the structure.

In the second embodiment, the first and second support plates are coupled to the reinforcing material so that the first and second tightening plates support the reinforcing material (fixed to the formwork) at both sides when the first and second tightening nuts are tightened. Bolts, stiffeners, and formwork are integrated into one to maintain the spacing between the formwork.

In addition, in the case of Example 3, the effects of Examples 1 and 2 are derived together, so that the formwork is more firmly supported, thereby maintaining the spacing of the formwork until concrete curing.

1 is an exploded perspective view of a spacing device of a concrete formwork using an integral body bolt that is bound to the reinforcement according to the first embodiment of the present invention.
Figure 2 is a cross-sectional view of the installation state of the concrete formwork spacing device using an integral body bolt that is bound with the reinforcement according to the first embodiment of the present invention.
Figure 3 is an exploded perspective view of the spacing device of the concrete formwork using an integral body bolt that is bound with the reinforcement according to the second embodiment of the present invention.
Figure 4 is a cross-sectional view of the installation state of the concrete formwork spacing device using an integral body bolt that is bound with the reinforcement according to the second embodiment of the present invention.
Figure 5 is an exploded perspective view of the gap retaining device of the concrete formwork using an integral body bolt that is bound with the reinforcement according to the second embodiment of the present invention.
Figure 6 is a cross-sectional view of the installation state of the concrete formwork spacing device using an integral body bolt that is bound with the reinforcement according to the second embodiment of the present invention.
Figure 7 is another illustration of the first and second wedge portion applied to the spacing device of the concrete formwork using an integral body bolt that is bound with the reinforcement according to the present invention.

A space keeping device (hereinafter abbreviated as 'space keeping device') of a concrete formwork using an integral body bolt that is bound to the reinforcing material according to the present invention is a pair arranged so as to place concrete therebetween with a certain distance therebetween. It is to maintain the spacing of the formwork [first, second formwork (1, 2)], the outer surface of the first and second formwork (1, 2) to prevent bending deformation (for example, the joist material (3)) , Yoke (4)] is made to combine, the embodiment of the spacing device according to the present invention will be described below.

≪ Example 1 >

As shown in Fig. 1 and Fig. 2, the space keeping apparatus 100 according to the present embodiment includes first and second body bolts 10 and 20, respectively, which are supported by the first and second dies 1 and 2, respectively. First and second support plates 40 for supporting the screw rods 30 connecting the first and second body bolts 10 and 20 and the first and second body bolts 10 and 20 to the yoke member 4 as the reinforcing material. 50), the first and second body bolts (10, 20) is fastened to the first and second body bolts (10, 20) to fix the first and second fixing nuts (60, 70) and each component It demonstrates concretely.

The first and second body bolts 10 and 20 are formed of the first and second body parts 11 and 21 and the first and second body parts 11 and 21 which pass through the long wire member 3 and the yoke material 4. The first and second cone nut parts 12 and 22 and the first and second body parts 11 and 21, which are respectively formed at opposite ends and supported by the first and second dies 1 and 2, are screwed together. First and second wedge parts 13 and 23 and first and second body parts formed in a cone shape or a spherical shape (shown as a spherical shape in the drawing) having a larger cross-sectional area than the first and second body parts 11 and 21. It is formed on the outer periphery of (11, 21) and on the outside of the first and second threaded portions (14, 24), the first and second threaded portions (14, 25) to which the first and second tightening nuts (60, 70) are fastened. It consists of wrench parts 15 and 25 extending.

The first and second body parts 11 and 21 are basic shapes of the first and second body bolts 10 and 20 to form and support other configurations, and may be, for example, rods having a circular cross section.

The first and second cone nut parts 12 and 22 are tightly supported by the holes of the first and second dies 1 and 2, and a female thread part is formed to fasten the screw rod 30.

The first and second cone nut parts 12 and 22 are screwed to the first and second body parts 11 and 21 to adjust positions and to allow independent repair.

The first and second cone nut parts 12 and 22 are formed in a cone shape of a tapered cross section to facilitate separation after curing of concrete.

The first and second wedge portions 13 and 23 are wedge-shapedly coupled to the wedge grooves 41 and 51 to be described later of the first and second support plates 40 and 50 to form the first and second body bolts 10 and 20. Through the first and second formwork (1, 2) is collected so as not to fall both the direction and the opening direction, and thus, is formed in a tapered cross section or sphere shape.

The first and second wedge parts 13 and 24 may be formed integrally with the first and second body parts 11 and 21, but may be formed separately from the first and second body parts 11 and 21 as shown in FIG. 7. It is in the form of a nut with female threads on the inner circumferential surface. In more detail, the first and second wedge portions 13 and 24 have a tapered portion formed on one or more sides thereof, and female threads are formed on the inner circumferential surface, and screwed to the first and second body portions 11 and 21 through the female screws. do. According to such a structure, the position of the first and second wedge portions 13 and 24 can be freely adjusted to be shared according to the gap between the formwork, and the first and second body portions 11 and 21 and the first and second 2 If the replacement is necessary from the wedge portion (13, 23) for reasons such as repair or size may be selected and used only. The first and second wedge portions 13 and 23 may be engaged or adjusted by rotation, and the outer circumferential surface is formed in a square shape in which a wrench is accommodated to facilitate such operation.

The first and second threaded portions 14 and 24 may be screwed to the first and second tightening nuts 60 and 70, and may be formed through processing on the circumferences of the first and second body portions 11 and 21. have.

The first and second wrench portions 15 and 25 are used when disassembling the first and second body bolts 10 and 20 so that the tool is supported without slip.

The first and second body bolts 10 and 20 having the above-described structure may be manufactured by processing one rod, or may be made by combining each component after being manufactured separately.

The screw rod 30 is screwed to the first and second cone nut parts 12 and 22 respectively disposed on both sides through the threaded part, respectively, the threaded part is formed on both sides of the longitudinal direction.

The first and second support plates 40 and 50 have a flat plate shape, and the first and second screw parts 14 and 24 and the first and second wrench parts 15 and 25 of the first and second body bolts 10 and 20 in the center portion thereof. Hole is formed therebetween, and the first and second tightening nuts 60 and 70 are interposed between the first and second tightening nuts 60 and 70 and the yoke material 4 to form the first and second threaded portions 14,. The yoke member 4 is supported by the tightening force of the first and second tightening nuts 60 and 70 when the fastening nut 24 is fastened to the first and second dies 1 and 2 so that the gap is maintained.

The first and second support plates 40 and 50 are provided with wedge grooves 41 and 51 such that the first and second wedge portions 13 and 23 of the first and second body bolts 10 and 20 are wedge-shaped. . The wedge grooves 41 and 51 may be formed in a tapered or hemispherical shape in which the cross-sectional area is gradually increased toward the outside.

The first and second tightening nuts 60 and 70 are screwed into the first and second threaded portions 14 and 24 of the first and second body bolts 10 and 20 to fix the first and second tightening plates 40 and 50. Supporting the first and second body bolts (10, 20) in the opposite direction while supporting in the direction of gathering each other to maintain the interval of the first and second die (1,2).

The action of the space retaining device of the concrete formwork using the integral body bolt that is bound with the reinforcement according to the present embodiment is as follows.

In this embodiment, the first and second tightening nuts 60 and 70 are attached to the first and second threaded portions 14 and 24 of the first and second body bolts 10 and 20, respectively. It is fastened in a coupled state and handled integrally, and is prepared by screwing, for example, a screw rod 30 to the first cone nut part 12 of the first body bolt 10.

The first cone nut portion 12 of the first body bolt 10 is inserted by inserting the screw rod 30 from the hole of the first die 1 using the first body bolt 10 to which the screw rod 30 is coupled. ) Is supported in the hole of the first die (1). At this time, the first support plate 40 is supported by the yoke material 4 by fastening the first tightening nut 60 so that the screw rod 30 maintains the correct position.

Next, the second body bolt 20 is inserted from the outside of the second die 2, and the second cone nut part 22 is screwed to the screw rod 30 by turning the second body bolt 20. In this case, since the screw rod 30 and the second cone nut part 22 must be screwed by turning the second body bolt 20, the second tightening nut 70 may not be fastened.

When the second body bolt 20 is fastened to the screw rod 30, the first and second tightening nuts 60 and 70 are fastened, respectively. In this process, the first and second tightening nuts 60 and 70 support the first and second support plates 40 and 50 in the same direction while moving in the direction of gathering with each other, and support the first and second body bolts 10 and 20. The first and second wedges 13 and 23 are supported in the first and second wedge grooves 41 and 51 by being pulled in the opposite direction, so that the first and second dies 1 and 2 and the first and second support plates 40, 50, the first and second body bolts (10, 20), the first and second tightening nuts (60, 70) are integrated to maintain the distance between the first and second die (1,2). That is, the first and second formwork (1, 2) maintains the design interval until curing of the concrete because there is no movement in both the direction of the gathering and the opening direction.

<Example 2>

As shown in Figures 3 and 4, the spacing device 100 of the concrete formwork using the integral body bolts that are bound to the reinforcement according to the present embodiment, the first and second body bolts (10, 20), screw rod 30 ), The first and second support plates 40 and 50 and the first and second tightening nuts 60 and 70 are the same, and the first and second wedge portions 13 and 23 of the first embodiment are the same. The first and second wedges 41 and 51 are not formed, and the first and second support plates 40 and 50 have first and second interlocking grooves 42 and 52 respectively coupled to the yoke material 4. It features.

The first and second interlocking grooves 42 and 52 of the first and second support plates 40 and 50 are formed to enclose the circumference of the yoke material 4, and two or more of the first and second interlocking grooves 42 and 52 are symmetrically formed for a solid binding. Do.

The first and second interlocking grooves 42 and 52 are formed to be symmetrical and open in opposite directions, for example, and are formed to extend around the first and second support plates 40 and 50. It is formed through the first and second locking pieces 43 and 53. For example, the first and second locking pieces 43 and 53 are formed in, for example, a “U” shape to have the first and second interlocking grooves 42 and 52, and are formed on the first and second support plates 40 and 50. It is fixed by welding or integrally formed.

The first and second locking pieces 43 and 53 are hit by a tool so that the first and second hitting parts 44 and 54 allow the first and second support pieces 40 and 50 to be separated from the yoke material 4. Included. The first and second hitting parts 44 and 54 may be any shape that protrudes to the outside of the first and second support plates 40 and 50 so that an operator can easily hit the tool with a hammer (such as a hammer).

According to this embodiment, the first body bolt 10 is connected to the first body bolt 10 and then installed first, as in Embodiment 1, the second body bolt 20 is screwed to the threaded rod 30 to be installed. .

Before the first and second tightening nuts 60 and 70 are fastened, the first and second support plates 40 and 50 are rotated so that the first and second interlocking grooves 42 and 52 are respectively the upper and lower portions of the yoke material 4. By fitting to the first and second support plates (40, 50) and yoke material (4) to be integrated. As a result, the first and second dies 1 and 2 are synthesized integrally with the first and second support plates 40 and 50.

When the first and second tightening nuts 60 and 70 are fastened, the first and second support nuts 40 and 50 are supported in the same direction while moving in the direction in which the first and second tightening nuts 60 and 70 are collected. The first and second body bolts 10 and 20 are supported in opposite directions to maintain the distance between the first and second dies 1 and 2.

When the concrete is cured to demold the first and second molds (1, 2), the tool is removed to release the first and second tightening nuts (60, 70) and to separate the first and second support plates (40, 50). When hitting the striking portion (44,54) of the first and second support plates (40, 50) by using the first and second support plates (40, 50) are removed from the yoke material (4). Subsequently, the first and second body bolts 10 and 20 are rotated through the first and second wrench portions 15 and 25 to be separated from the screw rod 30.

<Example 3>

As shown in Fig. 5 and 6, the space keeping device 100 of the concrete formwork using the integral body bolt that is bound to the reinforcing material according to the present embodiment is a combination of the above-described embodiment 1 and Example 2, the first First and second wedge portions 13 and 23 of the two main body bolts 10 and 20, the first and second wedge grooves 41 and 51 and the first and second inter holes of the first and second support plates 40 and 50. The first and second dies 1 and 2 maintain the gap by the locking grooves 43 and 53. Since this has been described in detail in Examples 1 and 2, the embodiment will be omitted.

1,2: 1st, 2nd formwork, 3: Jang Sunjae
4: Yoke
10,20: 1st, 2nd body bolt,
11,21: 1st, 2nd body part, 12,22: 1st, 2nd cone nut part
13,23: 1st, 2nd wedge, 14,24: 1st, 2nd screw
15,25: first and second wrench,
30: screw rod
40,50: first and second support plates,
41,51: 1st, 2nd wedge groove, 42,52: 1st, 2nd interlocking groove
43,53: 1st, 2nd locking piece, 44,54: 1st, 2nd hitting part
60,70: 1st, 2nd tightening nut,

Claims (10)

The threaded portion is formed on the outer circumferential surface and the screw rod 30 interposed between the first and second dies (1, 2) arranged at a predetermined interval from each other, the screw rod is screwed to both sides of the screw rod, respectively, the first and second dies First and second body bolts 10 and 20 which are supported by a reinforcing material installed on the outside of the screw rod and fastened to the screw rods, and which support the first and second body bolts to the reinforcing material installed on the outside of the first and second dies. First and second fasteners which are fastened to the first and second body bolts by fastening the first and second body bolts to the first and second support plates 40 and 50 and the first and second body bolts. Nuts 60, 70,
The first and second body bolts are formed on the first and second body parts 11 and 21 penetrating the reinforcing member, and the first and second body parts facing the first and second body parts, respectively. 2 cone nut parts 12 and 22, first and second wedge parts 13 and 23 formed in a cone shape or sphere shape having a larger cross-sectional area than the first and second body parts, and It is formed on the outer periphery of the first and second body portion and includes the first and second screw portions 14 and 24 to which the first and second tightening nuts are fastened,
The first and second support plates are supported by a reinforcement member installed outside the first and second dies, and have a plate shape in which a hole is formed through the first and second screw portions of the first and second body bolts in a central portion thereof. The first and second wedge grooves 41 and 51 having a tapered cross-section in which the second wedge portion is supported by a wedge type are provided, and the first and second body bolts and the first and second body bolts are fastened by fastening the first and second tightening nuts. 2, the support plate is a wedge-shaped fastening method for maintaining the spacing of the concrete formwork using an integral body bolt that is coupled to the reinforcement, characterized in that the structure to maintain the spacing between the first and second formwork. delete The threaded portion is formed on the outer circumferential surface and the screw rod 30 interposed between the first and second dies (1, 2) arranged at a predetermined interval from each other, the screw rod is screwed to both sides of the screw rod, respectively, the first and second dies First and second body bolts 10 and 20 which are supported by a reinforcing material installed on the outside of the screw rod and fastened to the screw rods, and which support the first and second body bolts to the reinforcing material installed on the outside of the first and second dies. First and second fasteners which are fastened to the first and second body bolts by fastening the first and second body bolts to the first and second support plates 40 and 50 and the first and second body bolts. Nuts 60, 70,
The first and second body bolts are formed on the first and second body parts 11 and 21 penetrating the reinforcing member, and the first and second body parts facing the first and second body parts, respectively. 2 cone nut parts 12 and 22, first and second wedge parts 13 and 23 formed in a cone shape or sphere shape having a larger cross-sectional area than the first and second body parts, and It is formed on the outer periphery of the first and second body portion and includes the first and second screw portions 14 and 24 to which the first and second tightening nuts are fastened,
The first and second support plates are plate-shaped, supported by a reinforcement installed on the outside of the first and second dies, and having a hole through which the first and second threaded portions of the first and second body bolts penetrate. First and second interlocking grooves 42 and 52 are formed in the periphery of the reinforcing member installed on the outside of the first and second dies, and the first and second fastening nuts are fastened to each other. 1 and 2 body bolts and the first and second support plates are fastened in a wedge fashion to maintain the spacing between the first and second formwork, it is a structure for maintaining the spacing of the concrete formwork using an integral body bolt that is bound to the reinforcement. . The method according to claim 1 or 3, wherein the first, second wedge portion (13, 23) is formed in a single piece, characterized in that coupled to the first and second body portion (11, 21) detachably and positionally adjustable. Spacing device for concrete formwork using integral body bolts that are bound to reinforcement. The reinforcing member according to claim 4, wherein a male screw part is formed on an outer circumferential surface of the first and second body parts, and a female thread part is formed on an inner circumferential surface of the first and second body parts, and is screwed to the male screw part of the first and second body parts. Spacing device for concrete formwork using an integral body bolt that is engaged with the. The method according to claim 5, wherein the first and second wedge portion is formed on the tapered portion at one or more sides, the outer peripheral surface of the concrete formwork using a one-piece body bolts to be bonded to the reinforcement, characterized in that formed in a square to accommodate the wrench. The first and second interlocking grooves of claim 3, wherein the first and second interlocking grooves are formed on first and second locking pieces extending in a direction surrounding the periphery of the reinforcement to the periphery of the first and second support plate bodies. Space keeping device of concrete formwork using an integral body bolt that is bound to the reinforcing material.
The method of claim 7, wherein the first and second locking pieces are characterized in that the structure is provided with first and second hitting parts (44,54) to be hit by a tool to separate the first and second support pieces from the reinforcing material. Space keeping device of concrete formwork using an integral body bolt that is bound to the reinforcing material. The body bolt of claim 1 or 3, wherein the first and second body bolts have a structure including first and second wrench portions formed at ends of the first and second screw portions. Spacing device of used concrete formwork. The integrated body of claim 1 or 3, wherein the first and second cone nut parts 12 and 22 are screwed to the first and second body parts 11 and 21 in a screwed manner. Spacing device for concrete formwork using bolts.

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